Question about Jeep CJ7

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Jeep CJ7 clutch/gearbox rattle

Hi, I have a 1981 CJ7 6 cyl auto. I started it yesterday and there was a rattling sound coming from the gearbox/clutch area. It sounds like a loose exhaust baffle but it definitely isn't coming from the exhaust. When put in drive or reverse and then put under load there is a rattling/clattering sound. The sound disappears when up to speed. Any suggestions gratefully received! Thanks, Nigel.

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  • 3 more comments 
  • whittakerfam Jan 23, 2009

    Hi s60six



    It was serviced 2 months ago and this should have been checked but I'll have a look. Thanks

  • whittakerfam Jan 24, 2009

    it's an auto transmission

  • whittakerfam Feb 03, 2009

    Thanks s60six. I've been checking things over. It's got lubricant and there is no play in the UJ's. I'm not sure what a "hanger bearing" is!

    The weird thing is that it's now stopped making the noise so I am completely baffled as to what it was. If it re-appears then I'll let you know. Thanks for all your help on this; really appreciated.

  • s60six May 11, 2010

    I noticed you said "drive or reverse" that makes me think automatic, is your trans standard or auto?

  • s60six May 11, 2010

    have you checked the level of the lubricant in it?

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It could be a universal joint and not the trans at all.Put your jeep in park and get under it and check for play at each end of the shaft(try turning it by hand counterclockwise and clockwise then try moving it up and down and side to side) If there is any play at all you, need universal joints. Your jeep may also have a hanger bearing.....Check it for play as well
I hope this helps! Keep me posted.

Posted on Jan 24, 2009

  • s60six Feb 06, 2009

    the hanger bearing is used to support the drive shaft in the middle when the shaft needs to span a longer distance, or to correct pinion angles, Upon further research i now realize that your jeep probably doesn't have one. Good Luck with it and i hope the issue doesn't reappear.....if it does let us know were always glad to help!

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